SKF W638/3-2Z bearings
W638/3-2Z stainless steel deep groove ball bearing with sealing
- Measurement system
- Metric
- Bore diameter
- 3.000 mm
- Outside diameter
- 7.000 mm
- Width
- 3.000 mm
- Cr
- 178 N
- C0r
- 57 N
- Limiting speed
- 80000 r/min
- Net weight
- 0.5 g
- Number of rows
- 1
- Sealing
- Shield on both sides
- Cage
- Stainless steel sheet
- Bearing material
- Stainless steel
- Rolling material
- Stainless steel
- Internal clearance
- CN
- Lubricant in bearing
- Grease
- Relubrication feature
- Without
In stock
Technical specification for SKF W638/3-2Z
| Part Number | W638/3-2Z | |
|---|---|---|
| Description | Stainless steel deep groove ball bearing | |
| Number of rows | 1 | |
| Cage | Stainless steel Sheet metal | |
| Material | Stainless steel | |
| Dimensions | ||
| d | 3.0 mm | Bore diameter |
| D | 7.0 mm | Outside diameter |
| B | 3.0 mm | Total width |
| d2 | ≈ 3.85 mm | Recess diameter |
| D2 | ≈ 6.35 mm | Recess diameter |
| r1,2 | min. 0.1 mm | Chamfer dimension |
| Abutment Dimensions | ||
| da | min. 3.7 mm | Diameter of shaft abutment |
| max. 3.8 mm | Diameter of shaft abutment | |
| Da | max. 6.5 mm | Diameter of housing abutment |
| ra | max. 0.1 mm | Radius of shaft or housing fillet |
| Calculation Data | ||
| C | 0.178 kN | Basic dynamic load rating |
| C0 | 0.057 kN | Basic static load rating |
| Pu | 0.002 kN | Fatigue load limit |
| 160000.0 r/min | Reference speed | |
| 80000.0 r/min | Limiting speed | |
| kr | 0.02 | Minimum load factor |
| f0 | 7.1 | Calculation factor |
SKF W638/3-2Z, Stainless steel single row deep groove ball bearing with seals or shields on both sides, provide greater chemical and corrosion resistance. As with deep groove ball bearings generally, they are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.
- Bore diameter: 3.0 mm
- Outside diameter: 7.0 mm
- Width: 3.0 mm
- Basic dynamic load rating: 0.178 kN
- Basic static load rating: 0.057 kN
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